Hiding who you really are to hook someone into an online relationship using Facebook, Tumblr, Twitter, MySpace or by cell phone.

Guy 1: "Hey so I met this new girl online! She is so hot!"
Guy 2: "Have you ever seen her in person?"
Guy 1:"No, does that matter?"
Guy 2: "Better make sure she's not a catfish.."
Guy 1: "You think she's catfishing?!"

A bottom feeder, a tag along, a person riding on the coat tails of someone to get where they are trying to go. A person looking for a free ride, the easy way out. In some cases a mooch. A person looking for a meal ticket, and a Liar.

Suzie got an inheritance, shortly after Johnny started dating Suzie. Suzie spent a ton of money on Johnny buying new clothes, big screen tv's, a new truck for Johnny, and a beautiful condo for her and Johnny to live in. Johnny swore he loved her. Suzie put the truck in Johnny's name because she too loved Johnny. Suzie soon realized that all of her money had been spent. Johnny then broke up with Suzie, took the truck, the tv's, the clothes, and never looked back. Suzie is now broke, and broken hearted. Shame on Johnny, he was just "cat fishing".

Beeing lazy and watch tv or read and just do as little as possible when you could do other stuff. The reason for the term is that the catfish generally hang out on the bottom of the water, being lazy and doing all they need there without moving unnecessarily.

"I'm really tired, you up for some catfishing?"

"We could do some trekking, but I would prefer to take a chill day and just catfish."
"Catfishing sounds good to me."

To have one large pubic hair protruding from one's zipper, whether purposely or by accident. The term comes from the long barbels, or whiskers that stick out from the mouths of catfish. While the whiskers of catfish house their taste buds and are used to search for food in murky waters, the act of catfishing will only serve to make you look like a complete slob, oblivious airhead, or creepy perv.

"So I was giving a presentation the other day, and I looked down and realized that I was totally catfishing! I was so embarrassed, so I spent the rest of the time with my back to the audience!"

"I was catfishing at the club last night and at least 3 people noticed!"